151433421 has 8 divisors (see below), whose sum is σ = 202431840. Its totient is φ = 100695312.

The previous prime is 151433383. The next prime is 151433423. The reversal of 151433421 is 124334151.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 151433421 - 2⁹ = 151432909 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 151433391 and 151433400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151433423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63715 + ... + 66048.

It is an arithmetic number, because the mean of its divisors is an integer number (25303980).

Almost surely, 2^151433421 is an apocalyptic number.

It is an amenable number.

151433421 is a deficient number, since it is larger than the sum of its proper divisors (50998419).

151433421 is a wasteful number, since it uses less digits than its factorization.

151433421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130155.

The product of its digits is 1440, while the sum is 24.

The square root of 151433421 is about 12305.8287408854. The cubic root of 151433421 is about 533.0164074985.

Adding to 151433421 its reverse (124334151), we get a palindrome (275767572).

The spelling of 151433421 in words is "one hundred fifty-one million, four hundred thirty-three thousand, four hundred twenty-one".