145694540 has 24 divisors (see below), whose sum is σ = 306219312. Its totient is φ = 58228160.

The previous prime is 145694533. The next prime is 145694551. The reversal of 145694540 is 45496541.

It is a junction number, because it is equal to n+sod(n) for n = 145694494 and 145694503.

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, 29102 + ... + 33738.

It is an arithmetic number, because the mean of its divisors is an integer number (12759138).

Almost surely, 2^145694540 is an apocalyptic number.

145694540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145694540 is an abundant number, since it is smaller than the sum of its proper divisors (160524772).

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

145694540 is a wasteful number, since it uses less digits than its factorization.

145694540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6217 (or 6215 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 145694540 is about 12070.3993305938. The cubic root of 145694540 is about 526.1962623064.

The spelling of 145694540 in words is "one hundred forty-five million, six hundred ninety-four thousand, five hundred forty".