101402397 has 12 divisors (see below), whose sum is σ = 147455100. Its totient is φ = 67147008.

The previous prime is 101402387. The next prime is 101402419. The reversal of 101402397 is 793204101.

It can be written as a sum of positive squares in 2 ways, for example, as 18610596 + 82791801 = 4314^2 + 9099^2 .

It is not a de Polignac number, because 101402397 - 2⁴ = 101402381 is a prime.

It is a super-2 number, since 2×101402397² = 20564892234691218, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 101402397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101402317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36468 + ... + 39149.

It is an arithmetic number, because the mean of its divisors is an integer number (12287925).

Almost surely, 2^101402397 is an apocalyptic number.

It is an amenable number.

101402397 is a deficient number, since it is larger than the sum of its proper divisors (46052703).

101402397 is a wasteful number, since it uses less digits than its factorization.

101402397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75772 (or 75769 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 101402397 is about 10069.8757191934. The cubic root of 101402397 is about 466.3186020810.

Adding to 101402397 its reverse (793204101), we get a palindrome (894606498).

The spelling of 101402397 in words is "one hundred one million, four hundred two thousand, three hundred ninety-seven".