145976949 has 12 divisors (see below), whose sum is σ = 213030636. Its totient is φ = 96314112.

The previous prime is 145976947. The next prime is 145976953. The reversal of 145976949 is 949679541.

It is a happy number.

145976949 is a `hidden beast` number, since 1 + 4 + 597 + 6 + 9 + 49 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 91068849 + 54908100 = 9543^2 + 7410^2 .

It is not a de Polignac number, because 145976949 - 2¹ = 145976947 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 145976895 and 145976904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145976947) 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, 82734 + ... + 84479.

It is an arithmetic number, because the mean of its divisors is an integer number (17752553).

Almost surely, 2^145976949 is an apocalyptic number.

It is an amenable number.

145976949 is a deficient number, since it is larger than the sum of its proper divisors (67053687).

145976949 is a wasteful number, since it uses less digits than its factorization.

145976949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167316 (or 167313 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 54.

The square root of 145976949 is about 12082.0920787751. The cubic root of 145976949 is about 526.5360294389.

The spelling of 145976949 in words is "one hundred forty-five million, nine hundred seventy-six thousand, nine hundred forty-nine".