145702840 has 16 divisors (see below), whose sum is σ = 327831480. Its totient is φ = 58281120.

The previous prime is 145702793. The next prime is 145702913. The reversal of 145702840 is 48207541.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1821246 + ... + 1821325.

Almost surely, 2^145702840 is an apocalyptic number.

145702840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145702840 is an abundant number, since it is smaller than the sum of its proper divisors (182128640).

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

145702840 is a wasteful number, since it uses less digits than its factorization.

145702840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3642582 (or 3642578 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 145702840 is about 12070.7431419942. The cubic root of 145702840 is about 526.2062543213.

The spelling of 145702840 in words is "one hundred forty-five million, seven hundred two thousand, eight hundred forty".