145154349 has 24 divisors (see below), whose sum is σ = 218024352. Its totient is φ = 96506640.

The previous prime is 145154323. The next prime is 145154351. The reversal of 145154349 is 943451541.

It is a happy number.

It is not a de Polignac number, because 145154349 - 2¹⁶ = 145088813 is a prime.

It is a super-2 number, since 2×145154349² = 42139570067227602, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145154249) 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 23 ways as a sum of consecutive naturals, for example, 136279 + ... + 137339.

It is an arithmetic number, because the mean of its divisors is an integer number (9084348).

Almost surely, 2^145154349 is an apocalyptic number.

It is an amenable number.

145154349 is a deficient number, since it is larger than the sum of its proper divisors (72870003).

145154349 is an equidigital number, since it uses as much as digits as its factorization.

145154349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1639 (or 1627 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 145154349 is about 12048.0018675297. The cubic root of 145154349 is about 525.5451317278.

The spelling of 145154349 in words is "one hundred forty-five million, one hundred fifty-four thousand, three hundred forty-nine".