145302766597 has 8 divisors (see below), whose sum is σ = 149845714200. Its totient is φ = 140807389440.

The previous prime is 145302766573. The next prime is 145302766613. The reversal of 145302766597 is 795667203541.

It is a happy number.

It is a Cunningham number, because it is equal to 381186²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 7001338276 + 138301428321 = 83674^2 + 371889^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145302766597 is a prime.

It is a super-2 number, since 2×145302766597² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145302766507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11886408 + ... + 11898625.

It is an arithmetic number, because the mean of its divisors is an integer number (18730714275).

Almost surely, 2^145302766597 is an apocalyptic number.

It is an amenable number.

145302766597 is a deficient number, since it is larger than the sum of its proper divisors (4542947603).

145302766597 is a wasteful number, since it uses less digits than its factorization.

145302766597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23785223.

The product of its (nonzero) digits is 9525600, while the sum is 55.

The spelling of 145302766597 in words is "one hundred forty-five billion, three hundred two million, seven hundred sixty-six thousand, five hundred ninety-seven".