147748831 has 2 divisors, whose sum is σ = 147748832. Its totient is φ = 147748830.

The previous prime is 147748787. The next prime is 147748837. The reversal of 147748831 is 138847741.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 147748831 - 2¹¹ = 147746783 is a prime.

It is a super-2 number, since 2×147748831² = 43659434123733122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (147748837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73874415 + 73874416.

It is an arithmetic number, because the mean of its divisors is an integer number (73874416).

Almost surely, 2^147748831 is an apocalyptic number.

147748831 is a deficient number, since it is larger than the sum of its proper divisors (1).

147748831 is an equidigital number, since it uses as much as digits as its factorization.

147748831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 150528, while the sum is 43.

The square root of 147748831 is about 12155.1976948135. The cubic root of 147748831 is about 528.6578488667.

The spelling of 147748831 in words is "one hundred forty-seven million, seven hundred forty-eight thousand, eight hundred thirty-one".