145796749 has 4 divisors (see below), whose sum is σ = 166624864. Its totient is φ = 124968636.

The previous prime is 145796741. The next prime is 145796801. The reversal of 145796749 is 947697541.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 145796749 - 2³ = 145796741 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 145796696 and 145796705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145796741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10414047 + ... + 10414060.

It is an arithmetic number, because the mean of its divisors is an integer number (41656216).

Almost surely, 2^145796749 is an apocalyptic number.

It is an amenable number.

145796749 is a deficient number, since it is larger than the sum of its proper divisors (20828115).

145796749 is an equidigital number, since it uses as much as digits as its factorization.

145796749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20828114.

The product of its digits is 1905120, while the sum is 52.

The square root of 145796749 is about 12074.6324581745. The cubic root of 145796749 is about 526.3192809226.

The spelling of 145796749 in words is "one hundred forty-five million, seven hundred ninety-six thousand, seven hundred forty-nine".