145651752 has 48 divisors (see below), whose sum is σ = 395134740. Its totient is φ = 48469248.

The previous prime is 145651741. The next prime is 145651771. The reversal of 145651752 is 257156541.

It can be written as a sum of positive squares in 2 ways, for example, as 145298916 + 352836 = 12054^2 + 594^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54348 + ... + 56964.

Almost surely, 2^145651752 is an apocalyptic number.

145651752 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

145651752 is an abundant number, since it is smaller than the sum of its proper divisors (249482988).

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

145651752 is a wasteful number, since it uses less digits than its factorization.

145651752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3402 (or 3395 counting only the distinct ones).

The product of its digits is 42000, while the sum is 36.

The square root of 145651752 is about 12068.6267652952. The cubic root of 145651752 is about 526.1447456421.

The spelling of 145651752 in words is "one hundred forty-five million, six hundred fifty-one thousand, seven hundred fifty-two".