101512397 has 4 divisors (see below), whose sum is σ = 116014176. Its totient is φ = 87010620.

The previous prime is 101512381. The next prime is 101512429. The reversal of 101512397 is 793215101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 101512397 - 2⁴ = 101512381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101512337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7250879 + ... + 7250892.

It is an arithmetic number, because the mean of its divisors is an integer number (29003544).

Almost surely, 2^101512397 is an apocalyptic number.

It is an amenable number.

101512397 is a deficient number, since it is larger than the sum of its proper divisors (14501779).

101512397 is an equidigital number, since it uses as much as digits as its factorization.

101512397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14501778.

The product of its (nonzero) digits is 1890, while the sum is 29.

The square root of 101512397 is about 10075.3360737992. The cubic root of 101512397 is about 466.4871599285.

Adding to 101512397 its reverse (793215101), we get a palindrome (894727498).

The spelling of 101512397 in words is "one hundred one million, five hundred twelve thousand, three hundred ninety-seven".