145706949 has 24 divisors (see below), whose sum is σ = 224916120. Its totient is φ = 90574848.

The previous prime is 145706927. The next prime is 145706969. The reversal of 145706949 is 949607541.

145706949 is a `hidden beast` number, since 14 + 570 + 69 + 4 + 9 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 43797924 + 101909025 = 6618^2 + 10095^2 .

It is not a de Polignac number, because 145706949 - 2⁵ = 145706917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145706969) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12309 + ... + 21045.

It is an arithmetic number, because the mean of its divisors is an integer number (9371505).

Almost surely, 2^145706949 is an apocalyptic number.

It is an amenable number.

145706949 is a deficient number, since it is larger than the sum of its proper divisors (79209171).

145706949 is a wasteful number, since it uses less digits than its factorization.

145706949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8869 (or 8866 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 145706949 is about 12070.9133457249. The cubic root of 145706949 is about 526.2112008301.

The spelling of 145706949 in words is "one hundred forty-five million, seven hundred six thousand, nine hundred forty-nine".