101412521 has 4 divisors (see below), whose sum is σ = 115900032. Its totient is φ = 86925012.

The previous prime is 101412517. The next prime is 101412539. The reversal of 101412521 is 125214101.

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 101412521 - 2² = 101412517 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101412521.

It is not an unprimeable number, because it can be changed into a prime (101412121) 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, 7243745 + ... + 7243758.

It is an arithmetic number, because the mean of its divisors is an integer number (28975008).

Almost surely, 2^101412521 is an apocalyptic number.

It is an amenable number.

101412521 is a deficient number, since it is larger than the sum of its proper divisors (14487511).

101412521 is an equidigital number, since it uses as much as digits as its factorization.

101412521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14487510.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 101412521 is about 10070.3783940823. The cubic root of 101412521 is about 466.3341206241.

Adding to 101412521 its reverse (125214101), we get a palindrome (226626622).

The spelling of 101412521 in words is "one hundred one million, four hundred twelve thousand, five hundred twenty-one".