151421400 has 240 divisors, whose sum is σ = 567151200. Its totient is φ = 37221120.

The previous prime is 151421377. The next prime is 151421411. The reversal of 151421400 is 4124151.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 210241 + ... + 210959.

It is an arithmetic number, because the mean of its divisors is an integer number (2363130).

Almost surely, 2^151421400 is an apocalyptic number.

151421400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 151421400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (283575600).

151421400 is an abundant number, since it is smaller than the sum of its proper divisors (415729800).

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

151421400 is a wasteful number, since it uses less digits than its factorization.

151421400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760 (or 742 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 151421400 is about 12305.3403041119. The cubic root of 151421400 is about 533.0023032589.

Adding to 151421400 its reverse (4124151), we get a palindrome (155545551).

The spelling of 151421400 in words is "one hundred fifty-one million, four hundred twenty-one thousand, four hundred".