145115741 has 4 divisors (see below), whose sum is σ = 145200000. Its totient is φ = 145031484.

The previous prime is 145115731. The next prime is 145115759. The reversal of 145115741 is 147511541.

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, and also an emirpimes, since its reverse is a distinct semiprime: 147511541 = 6521 ⋅22621.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145115741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145115701) 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, 39491 + ... + 43008.

It is an arithmetic number, because the mean of its divisors is an integer number (36300000).

Almost surely, 2^145115741 is an apocalyptic number.

It is an amenable number.

145115741 is a deficient number, since it is larger than the sum of its proper divisors (84259).

145115741 is an equidigital number, since it uses as much as digits as its factorization.

145115741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84258.

The product of its digits is 2800, while the sum is 29.

The square root of 145115741 is about 12046.3995035861. The cubic root of 145115741 is about 525.4985329503.

The spelling of 145115741 in words is "one hundred forty-five million, one hundred fifteen thousand, seven hundred forty-one".