145492740 has 48 divisors (see below), whose sum is σ = 452645760. Its totient is φ = 38797920.

The previous prime is 145492667. The next prime is 145492741. The reversal of 145492740 is 47294541.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 145492695 and 145492704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145492741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134176 + ... + 135255.

It is an arithmetic number, because the mean of its divisors is an integer number (9430120).

Almost surely, 2^145492740 is an apocalyptic number.

145492740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145492740 is an abundant number, since it is smaller than the sum of its proper divisors (307153020).

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

145492740 is a wasteful number, since it uses less digits than its factorization.

145492740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269449 (or 269441 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 145492740 is about 12062.0371413787. The cubic root of 145492740 is about 525.9532070544.

The spelling of 145492740 in words is "one hundred forty-five million, four hundred ninety-two thousand, seven hundred forty".