151421244 has 48 divisors (see below), whose sum is σ = 402883488. Its totient is φ = 43849728.

The previous prime is 151421239. The next prime is 151421251. The reversal of 151421244 is 442124151.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25897 + ... + 31200.

It is an arithmetic number, because the mean of its divisors is an integer number (8393406).

Almost surely, 2^151421244 is an apocalyptic number.

It is an amenable number.

151421244 is an abundant number, since it is smaller than the sum of its proper divisors (251462244).

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

151421244 is a wasteful number, since it uses less digits than its factorization.

151421244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57134 (or 57132 counting only the distinct ones).

The product of its digits is 1280, while the sum is 24.

The square root of 151421244 is about 12305.3339653989. Note that the first 3 decimals coincide. The cubic root of 151421244 is about 533.0021202191.

Adding to 151421244 its reverse (442124151), we get a palindrome (593545395).

The spelling of 151421244 in words is "one hundred fifty-one million, four hundred twenty-one thousand, two hundred forty-four".