145776939 has 64 divisors (see below), whose sum is σ = 256573440. Its totient is φ = 71406720.

The previous prime is 145776937. The next prime is 145776947. The reversal of 145776939 is 939677541.

It is not a de Polignac number, because 145776939 - 2¹ = 145776937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 145776891 and 145776900.

It is not an unprimeable number, because it can be changed into a prime (145776937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 314622 + ... + 315084.

It is an arithmetic number, because the mean of its divisors is an integer number (4008960).

Almost surely, 2^145776939 is an apocalyptic number.

145776939 is a deficient number, since it is larger than the sum of its proper divisors (110796501).

145776939 is a wasteful number, since it uses less digits than its factorization.

145776939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560.

The product of its digits is 1428840, while the sum is 51.

The square root of 145776939 is about 12073.8121154837. The cubic root of 145776939 is about 526.2954421258.

The spelling of 145776939 in words is "one hundred forty-five million, seven hundred seventy-six thousand, nine hundred thirty-nine".