151352421 has 32 divisors (see below), whose sum is σ = 230428800. Its totient is φ = 87521280.

The previous prime is 151352417. The next prime is 151352431. The reversal of 151352421 is 124253151.

It is a happy number.

It is not a de Polignac number, because 151352421 - 2² = 151352417 is a prime.

It is a super-2 number, since 2×151352421² = 45815110685122482, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 151352391 and 151352400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151352401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84285 + ... + 86061.

It is an arithmetic number, because the mean of its divisors is an integer number (7200900).

Almost surely, 2^151352421 is an apocalyptic number.

151352421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

151352421 is a deficient number, since it is larger than the sum of its proper divisors (79076379).

151352421 is a wasteful number, since it uses less digits than its factorization.

151352421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1909.

The product of its digits is 1200, while the sum is 24.

The square root of 151352421 is about 12302.5371773468. The cubic root of 151352421 is about 532.9213557615.

The spelling of 151352421 in words is "one hundred fifty-one million, three hundred fifty-two thousand, four hundred twenty-one".