151625121 has 4 divisors (see below), whose sum is σ = 202166832. Its totient is φ = 101083412.

The previous prime is 151625119. The next prime is 151625129. The reversal of 151625121 is 121526151.

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 151625121 - 2¹ = 151625119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 151625091 and 151625100.

It is not an unprimeable number, because it can be changed into a prime (151625129) 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, 25270851 + ... + 25270856.

It is an arithmetic number, because the mean of its divisors is an integer number (50541708).

Almost surely, 2^151625121 is an apocalyptic number.

It is an amenable number.

151625121 is a deficient number, since it is larger than the sum of its proper divisors (50541711).

151625121 is an equidigital number, since it uses as much as digits as its factorization.

151625121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50541710.

The product of its digits is 600, while the sum is 24.

The square root of 151625121 is about 12313.6152692863. The cubic root of 151625121 is about 533.2412283221.

The spelling of 151625121 in words is "one hundred fifty-one million, six hundred twenty-five thousand, one hundred twenty-one".