154734252397 has 2 divisors, whose sum is σ = 154734252398. Its totient is φ = 154734252396.

The previous prime is 154734252391. The next prime is 154734252419. The reversal of 154734252397 is 793252437451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 149253959556 + 5480292841 = 386334^2 + 74029^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-154734252397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154734252391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77367126198 + 77367126199.

It is an arithmetic number, because the mean of its divisors is an integer number (77367126199).

Almost surely, 2^154734252397 is an apocalyptic number.

It is an amenable number.

154734252397 is a deficient number, since it is larger than the sum of its proper divisors (1).

154734252397 is an equidigital number, since it uses as much as digits as its factorization.

154734252397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6350400, while the sum is 52.

The spelling of 154734252397 in words is "one hundred fifty-four billion, seven hundred thirty-four million, two hundred fifty-two thousand, three hundred ninety-seven".