151400421 has 48 divisors (see below), whose sum is σ = 239855616. Its totient is φ = 95244336.

The previous prime is 151400407. The next prime is 151400443. The reversal of 151400421 is 124004151.

151400421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 151400421 - 2¹⁸ = 151138277 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 151400394 and 151400403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151400401) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 575536 + ... + 575798.

It is an arithmetic number, because the mean of its divisors is an integer number (4996992).

Almost surely, 2^151400421 is an apocalyptic number.

It is an amenable number.

151400421 is a deficient number, since it is larger than the sum of its proper divisors (88455195).

151400421 is a wasteful number, since it uses less digits than its factorization.

151400421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404 (or 392 counting only the distinct ones).

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

The square root of 151400421 is about 12304.4878398087. The cubic root of 151400421 is about 532.9776868093.

Adding to 151400421 its reverse (124004151), we get a palindrome (275404572).

The spelling of 151400421 in words is "one hundred fifty-one million, four hundred thousand, four hundred twenty-one".