196469139 has 16 divisors (see below), whose sum is σ = 278484480. Its totient is φ = 122853600.

The previous prime is 196469137. The next prime is 196469159. The reversal of 196469139 is 931964691.

It is not a de Polignac number, because 196469139 - 2¹ = 196469137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (196469131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11307 + ... + 22820.

It is an arithmetic number, because the mean of its divisors is an integer number (17405280).

Almost surely, 2^196469139 is an apocalyptic number.

196469139 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

196469139 is a deficient number, since it is larger than the sum of its proper divisors (82015341).

196469139 is a wasteful number, since it uses less digits than its factorization.

196469139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34250.

The product of its digits is 314928, while the sum is 48.

The square root of 196469139 is about 14016.7449502372. The cubic root of 196469139 is about 581.3416612065.

The spelling of 196469139 in words is "one hundred ninety-six million, four hundred sixty-nine thousand, one hundred thirty-nine".