101402025 has 24 divisors (see below), whose sum is σ = 177515424. Its totient is φ = 50899200.

The previous prime is 101402011. The next prime is 101402039. The reversal of 101402025 is 520204101.

It is an interprime number because it is at equal distance from previous prime (101402011) and next prime (101402039).

It is not a de Polignac number, because 101402025 - 2¹² = 101397929 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 101401995 and 101402013.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38491 + ... + 41040.

It is an arithmetic number, because the mean of its divisors is an integer number (7396476).

Almost surely, 2^101402025 is an apocalyptic number.

101402025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

101402025 is a deficient number, since it is larger than the sum of its proper divisors (76113399).

101402025 is a wasteful number, since it uses less digits than its factorization.

101402025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79561 (or 79556 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 101402025 is about 10069.8572482434. The cubic root of 101402025 is about 466.3180318422.

Adding to 101402025 its reverse (520204101), we get a palindrome (621606126).

The spelling of 101402025 in words is "one hundred one million, four hundred two thousand, twenty-five".