145276307640 has 96 divisors (see below), whose sum is σ = 472274318880. Its totient is φ = 38729984256.

The previous prime is 145276307629. The next prime is 145276307651. The reversal of 145276307640 is 46703672541.

145276307640 is a `hidden beast` number, since 1 + 4 + 5 + 2 + 7 + 630 + 7 + 6 + 4 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (145276307629) and next prime (145276307651).

It is a super-2 number, since 2×145276307640² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1343677 + ... + 1447763.

It is an arithmetic number, because the mean of its divisors is an integer number (4919524155).

Almost surely, 2^145276307640 is an apocalyptic number.

145276307640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145276307640 is an abundant number, since it is smaller than the sum of its proper divisors (326998011240).

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

145276307640 is a wasteful number, since it uses less digits than its factorization.

145276307640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107981 (or 107974 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 45.

The spelling of 145276307640 in words is "one hundred forty-five billion, two hundred seventy-six million, three hundred seven thousand, six hundred forty".