145046653669 has 2 divisors, whose sum is σ = 145046653670. Its totient is φ = 145046653668.

The previous prime is 145046653621. The next prime is 145046653693. The reversal of 145046653669 is 966356640541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 135801831169 + 9244822500 = 368513^2 + 96150^2 .

It is a cyclic number.

It is not a de Polignac number, because 145046653669 - 2¹⁷ = 145046522597 is a prime.

It is a super-2 number, since 2×145046653669² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145046651669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72523326834 + 72523326835.

It is an arithmetic number, because the mean of its divisors is an integer number (72523326835).

Almost surely, 2^145046653669 is an apocalyptic number.

It is an amenable number.

145046653669 is a deficient number, since it is larger than the sum of its proper divisors (1).

145046653669 is an equidigital number, since it uses as much as digits as its factorization.

145046653669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13996800, while the sum is 55.

The spelling of 145046653669 in words is "one hundred forty-five billion, forty-six million, six hundred fifty-three thousand, six hundred sixty-nine".