151900400 has 30 divisors (see below), whose sum is σ = 364941672. Its totient is φ = 60760000.

The previous prime is 151900387. The next prime is 151900409. The reversal of 151900400 is 4009151.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151900409) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 189476 + ... + 190275.

Almost surely, 2^151900400 is an apocalyptic number.

151900400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

151900400 is an abundant number, since it is smaller than the sum of its proper divisors (213041272).

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

151900400 is a wasteful number, since it uses less digits than its factorization.

151900400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379769 (or 379758 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 151900400 is about 12324.7880306316. The cubic root of 151900400 is about 533.5637372550.

Adding to 151900400 its reverse (4009151), we get a palindrome (155909551).

The spelling of 151900400 in words is "one hundred fifty-one million, nine hundred thousand, four hundred".