155154469 has 2 divisors, whose sum is σ = 155154470. Its totient is φ = 155154468.

The previous prime is 155154451. The next prime is 155154487. The reversal of 155154469 is 964451551.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (155154451) and next prime (155154487).

It can be written as a sum of positive squares in only one way, i.e., 129276900 + 25877569 = 11370^2 + 5087^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155154469 is a prime.

It is a super-2 number, since 2×155154469² = 48145818501343922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155154409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77577234 + 77577235.

It is an arithmetic number, because the mean of its divisors is an integer number (77577235).

Almost surely, 2^155154469 is an apocalyptic number.

It is an amenable number.

155154469 is a deficient number, since it is larger than the sum of its proper divisors (1).

155154469 is an equidigital number, since it uses as much as digits as its factorization.

155154469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108000, while the sum is 40.

The square root of 155154469 is about 12456.1016774912. The cubic root of 155154469 is about 537.3469190168.

The spelling of 155154469 in words is "one hundred fifty-five million, one hundred fifty-four thousand, four hundred sixty-nine".