151021400 has 24 divisors (see below), whose sum is σ = 351125220. Its totient is φ = 60408480.

The previous prime is 151021391. The next prime is 151021439. The reversal of 151021400 is 4120151.

It is a super-3 number, since 3×151021400³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 377354 + ... + 377753.

Almost surely, 2^151021400 is an apocalyptic number.

151021400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

151021400 is an abundant number, since it is smaller than the sum of its proper divisors (200103820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

151021400 is a wasteful number, since it uses less digits than its factorization.

151021400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755123 (or 755114 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 151021400 is about 12289.0764502464. The cubic root of 151021400 is about 532.5325569520.

Adding to 151021400 its reverse (4120151), we get a palindrome (155141551).

The spelling of 151021400 in words is "one hundred fifty-one million, twenty-one thousand, four hundred".