145012261640 has 32 divisors (see below), whose sum is σ = 326297830680. Its totient is φ = 58001306112.

The previous prime is 145012261633. The next prime is 145012261699. The reversal of 145012261640 is 46162210541.

It can be written as a sum of positive squares in 4 ways, for example, as 77071753924 + 67940507716 = 277618^2 + 260654^2 .

It is a junction number, because it is equal to n+sod(n) for n = 145012261597 and 145012261606.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 595364 + ... + 802796.

Almost surely, 2^145012261640 is an apocalyptic number.

145012261640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145012261640 is an abundant number, since it is smaller than the sum of its proper divisors (181285569040).

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

145012261640 is a wasteful number, since it uses less digits than its factorization.

145012261640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224921 (or 224917 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The spelling of 145012261640 in words is "one hundred forty-five billion, twelve million, two hundred sixty-one thousand, six hundred forty".