7145154 has 12 divisors (see below), whose sum is σ = 15481206. Its totient is φ = 2381712.

The previous prime is 7145153. The next prime is 7145161. The reversal of 7145154 is 4515417.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 7144929 + 225 = 2673^2 + 15^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (7145153) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 198459 + ... + 198494.

Almost surely, 2^7145154 is an apocalyptic number.

7145154 is an abundant number, since it is smaller than the sum of its proper divisors (8336052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7145154 is a wasteful number, since it uses less digits than its factorization.

7145154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396961 (or 396958 counting only the distinct ones).

The product of its digits is 2800, while the sum is 27.

The square root of 7145154 is about 2673.0420872107. The cubic root of 7145154 is about 192.6063189601.

It can be divided in two parts, 7 and 145154, that added together give a square (145161 = 381²).

The spelling of 7145154 in words is "seven million, one hundred forty-five thousand, one hundred fifty-four".