140637154 has 24 divisors (see below), whose sum is σ = 249071760. Its totient is φ = 59370696.

The previous prime is 140637151. The next prime is 140637163. The reversal of 140637154 is 451736041.

140637154 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (140637151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4144 + ... + 17275.

It is an arithmetic number, because the mean of its divisors is an integer number (10377990).

Almost surely, 2^140637154 is an apocalyptic number.

140637154 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

140637154 is a deficient number, since it is larger than the sum of its proper divisors (108434606).

140637154 is a wasteful number, since it uses less digits than its factorization.

140637154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21502 (or 21495 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 140637154 is about 11859.0536721949. The cubic root of 140637154 is about 520.0359368655.

The spelling of 140637154 in words is "one hundred forty million, six hundred thirty-seven thousand, one hundred fifty-four".