162990547 has 2 divisors, whose sum is σ = 162990548. Its totient is φ = 162990546.

The previous prime is 162990533. The next prime is 162990551. The reversal of 162990547 is 745099261.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 162990547 - 2¹⁹ = 162466259 is a prime.

It is a super-2 number, since 2×162990547² = 53131836822718418, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (162990517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81495273 + 81495274.

It is an arithmetic number, because the mean of its divisors is an integer number (81495274).

Almost surely, 2^162990547 is an apocalyptic number.

162990547 is a deficient number, since it is larger than the sum of its proper divisors (1).

162990547 is an equidigital number, since it uses as much as digits as its factorization.

162990547 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 162990547 is about 12766.7751213844. The cubic root of 162990547 is about 546.2449971003.

The spelling of 162990547 in words is "one hundred sixty-two million, nine hundred ninety thousand, five hundred forty-seven".