201409150923 has 12 divisors (see below), whose sum is σ = 290933363448. Its totient is φ = 134268597600.

The previous prime is 201409150919. The next prime is 201409150931. The reversal of 201409150923 is 329051904102.

201409150923 is a `hidden beast` number, since 2 + 0 + 1 + 40 + 91 + 509 + 23 = 666.

It is not a de Polignac number, because 201409150923 - 2² = 201409150919 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201409150933) 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, 25890 + ... + 635207.

It is an arithmetic number, because the mean of its divisors is an integer number (24244446954).

Almost surely, 2^201409150923 is an apocalyptic number.

201409150923 is a deficient number, since it is larger than the sum of its proper divisors (89524212525).

201409150923 is a wasteful number, since it uses less digits than its factorization.

201409150923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694954 (or 694951 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The spelling of 201409150923 in words is "two hundred one billion, four hundred nine million, one hundred fifty thousand, nine hundred twenty-three".