140150640 has 80 divisors (see below), whose sum is σ = 496539648. Its totient is φ = 32034048.

The previous prime is 140150629. The next prime is 140150651. The reversal of 140150640 is 46051041.

It is an interprime number because it is at equal distance from previous prime (140150629) and next prime (140150651).

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40032 + ... + 43391.

Almost surely, 2^140150640 is an apocalyptic number.

140150640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140150640 is an abundant number, since it is smaller than the sum of its proper divisors (356389008).

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

140150640 is a wasteful number, since it uses less digits than its factorization.

140150640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83446 (or 83440 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 140150640 is about 11838.5235565927. The cubic root of 140150640 is about 519.4355808830.

The spelling of 140150640 in words is "one hundred forty million, one hundred fifty thousand, six hundred forty".