151281792 has 48 divisors (see below), whose sum is σ = 435332430. Its totient is φ = 50426880.

The previous prime is 151281773. The next prime is 151281797. The reversal of 151281792 is 297182151.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 150405696 + 876096 = 12264^2 + 936^2 .

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (151281797) 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, 64509 + ... + 66812.

Almost surely, 2^151281792 is an apocalyptic number.

151281792 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

151281792 is an abundant number, since it is smaller than the sum of its proper divisors (284050638).

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

151281792 is a wasteful number, since it uses less digits than its factorization.

151281792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131341 (or 131326 counting only the distinct ones).

The product of its digits is 10080, while the sum is 36.

The square root of 151281792 is about 12299.6663369378. Note that the first 3 decimals coincide. The cubic root of 151281792 is about 532.8384464857.

The spelling of 151281792 in words is "one hundred fifty-one million, two hundred eighty-one thousand, seven hundred ninety-two".