155486741 has 2 divisors, whose sum is σ = 155486742. Its totient is φ = 155486740.

The previous prime is 155486711. The next prime is 155486791. The reversal of 155486741 is 147684551.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 150062500 + 5424241 = 12250^2 + 2329^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155486741 is a prime.

It is a super-2 number, since 2×155486741² = 48352253253602162, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155486711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77743370 + 77743371.

It is an arithmetic number, because the mean of its divisors is an integer number (77743371).

Almost surely, 2^155486741 is an apocalyptic number.

It is an amenable number.

155486741 is a deficient number, since it is larger than the sum of its proper divisors (1).

155486741 is an equidigital number, since it uses as much as digits as its factorization.

155486741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 134400, while the sum is 41.

The square root of 155486741 is about 12469.4322645420. The cubic root of 155486741 is about 537.7302317096.

The spelling of 155486741 in words is "one hundred fifty-five million, four hundred eighty-six thousand, seven hundred forty-one".