147089977 has 2 divisors, whose sum is σ = 147089978. Its totient is φ = 147089976.

The previous prime is 147089959. The next prime is 147089981. The reversal of 147089977 is 779980741.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 138674176 + 8415801 = 11776^2 + 2901^2 .

It is a cyclic number.

It is not a de Polignac number, because 147089977 - 2¹¹ = 147087929 is a prime.

It is a super-2 number, since 2×147089977² = 43270922667721058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (147089177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73544988 + 73544989.

It is an arithmetic number, because the mean of its divisors is an integer number (73544989).

Almost surely, 2^147089977 is an apocalyptic number.

It is an amenable number.

147089977 is a deficient number, since it is larger than the sum of its proper divisors (1).

147089977 is an equidigital number, since it uses as much as digits as its factorization.

147089977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 889056, while the sum is 52.

The square root of 147089977 is about 12128.0656742945. The cubic root of 147089977 is about 527.8708660804.

The spelling of 147089977 in words is "one hundred forty-seven million, eighty-nine thousand, nine hundred seventy-seven".