145049740 has 24 divisors (see below), whose sum is σ = 332296272. Its totient is φ = 52745280.

The previous prime is 145049701. The next prime is 145049771. The reversal of 145049740 is 47940541.

It is a junction number, because it is equal to n+sod(n) for n = 145049696 and 145049705.

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, 329439 + ... + 329878.

It is an arithmetic number, because the mean of its divisors is an integer number (13845678).

Almost surely, 2^145049740 is an apocalyptic number.

145049740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145049740 is an abundant number, since it is smaller than the sum of its proper divisors (187246532).

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

145049740 is a wasteful number, since it uses less digits than its factorization.

145049740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659337 (or 659335 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 145049740 is about 12043.6597427858. The cubic root of 145049740 is about 525.4188524416.

The spelling of 145049740 in words is "one hundred forty-five million, forty-nine thousand, seven hundred forty".