154361531 has 2 divisors, whose sum is σ = 154361532. Its totient is φ = 154361530.

The previous prime is 154361527. The next prime is 154361551. The reversal of 154361531 is 135163451.

It is a weak prime.

It is an emirp because it is prime and its reverse (135163451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 154361531 - 2² = 154361527 is a prime.

It is a super-2 number, since 2×154361531² = 47654964505327922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 154361494 and 154361503.

It is not a weakly prime, because it can be changed into another prime (154361551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77180765 + 77180766.

It is an arithmetic number, because the mean of its divisors is an integer number (77180766).

Almost surely, 2^154361531 is an apocalyptic number.

154361531 is a deficient number, since it is larger than the sum of its proper divisors (1).

154361531 is an equidigital number, since it uses as much as digits as its factorization.

154361531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5400, while the sum is 29.

The square root of 154361531 is about 12424.2316060189. The cubic root of 154361531 is about 536.4299603384.

The spelling of 154361531 in words is "one hundred fifty-four million, three hundred sixty-one thousand, five hundred thirty-one".