153740669 has 2 divisors, whose sum is σ = 153740670. Its totient is φ = 153740668.

The previous prime is 153740641. The next prime is 153740689. The reversal of 153740669 is 966047351.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 137780644 + 15960025 = 11738^2 + 3995^2 .

It is an emirp because it is prime and its reverse (966047351) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 153740669 - 2¹⁶ = 153675133 is a prime.

It is a super-2 number, since 2×153740669² = 47272386609135122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (153740689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76870334 + 76870335.

It is an arithmetic number, because the mean of its divisors is an integer number (76870335).

Almost surely, 2^153740669 is an apocalyptic number.

It is an amenable number.

153740669 is a deficient number, since it is larger than the sum of its proper divisors (1).

153740669 is an equidigital number, since it uses as much as digits as its factorization.

153740669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 153740669 is about 12399.2204996927. The cubic root of 153740669 is about 535.7097970993.

The spelling of 153740669 in words is "one hundred fifty-three million, seven hundred forty thousand, six hundred sixty-nine".